×

Stent delivery systems and associated methods

  • US 10,285,833 B2
  • Filed: 08/09/2013
  • Issued: 05/14/2019
  • Est. Priority Date: 08/10/2012
  • Status: Active Grant
First Claim
Patent Images

1. A stent delivery system for deploying a stent within a vessel, comprising:

  • a delivery catheter comprising a tubular enclosure at a distal end portion of the catheter;

    a braided stent constrained within the tubular enclosure, wherein the stent is configured to transition between an elongated radially compressed state and a shortened radially expanded state;

    a handle assembly comprising;

    a first lead screw and a second lead screw of opposite handedness and positioned along a longitudinal axis, wherein the first lead screw is in mechanical communication with the tubular enclosure and the second lead screw is configured to be placed in mechanical communication with the stent;

    a housing coupled to the delivery catheter and having a bore wall surrounding at least a portion of each of the first and second lead screws, wherein the bore wall has a first housing thread and a second housing thread thereon, the first and second housing threads intersecting on the bore wall,wherein upon rotation of at least a portion of the housing about the longitudinal axis, the first housing thread engages the first lead screw and the second housing thread engages the second lead screw so as to induce at least substantially simultaneous translations of the first and second lead screws in opposite directions along the longitudinal axis, wherein the translations are configured to deploy the stent from the tubular enclosure.

View all claims
  • 9 Assignments
Timeline View
Assignment View
    ×
    ×